SN8314 : Limestone with chert banding

near to Craig-y-Nos, Powys, Great Britain

Limestone with chert banding
Limestone with chert banding
Group: Carboniferous Limestone, Formation: Upper Limestone. The chert here defines the bedding planes as they were deposited from a siliceous ooze at the same time as the limestone. The presence of chert lenses in joints does infer that some at least was post depositional.
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1:50,000 Modern Day Landranger(TM) Map © Crown Copyright
1:50,000 Modern Day Landranger(TM) Map © Crown Copyright
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SN8314, 14 images   (more nearby )
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Geograph (First for SN8314)
First in 5 Years (TPoint) ?
Date Taken
September 1989   (more nearby)
Wednesday, 18 May, 2005
Geological feature   (more nearby)
Subject Location
OSGB36: geotagged! SN 831 143 [100m precision]
WGS84: 51:48.9040N 3:41.8356W
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